Widget Text doesn't update when navigating between Widget and Simplenote.

### Expected

When navigating from the widget text to a note directly and using the back option to return to the home screen, I would expect the text in the widget to also update.

### Observed

A user has reported that the text stays the same if they open a note by tapping on the widget, make an edit and then press back or perform back gesture to return to the home screen.

### Reproduced

1. Go to homescreen and add a Simplenote Widget.
2. Tap on a note from the list to open Simplenote and make an edit to that note.
3. Use the back button or swipe back gesture to return to the home screen.
3. Notice the text in the widget doesn't update.

Screenrecording provided by the user:

https://user-images.githubusercontent.com/10325627/107512061-37329a00-6b9e-11eb-95ed-13ad16c82e30.mp4

Reported in 3702027-zen
App Logs have been provided in the ticket too.

Xiaomi, Mi 9se
Android 10
Miui default launcher
Simplenote version 2.15

Start by reproducing the issue on the Android app using the listed steps: open a note from the widget, edit it, and return with the back button or gesture. Use the provided screen recording and app logs as references; done means the widget text reflects the edit after returning to the home screen.

Written by the indexing model from the issue text.